Yoshinori (義則) is recorded in sources as Yoshinori, with the lineage continuing from the period through the period, signing as Heianjō Yoshinori (平安城吉則). Together with Heianjō Nagayoshi, Yoshinori became a representative swordsmith of Yamashiro Province in the period. While the name spans several generations, among extant signed works the earliest date to the early period, with the majority coming from the mid- period onward, particularly around the Bunmei era. A with bearing a Ryakuō 3 (1340) date attests to the lineage's -period origins and constitutes a reference piece of high documentary value.
The forging across designated works presents in tight texture, with flowing grain tending toward near both the and sides, adhering and entering. The varies from mixed with -- showing deep with well-adhering , , , and a bright, clear -- to mixed with incorporating and occasional . The early -period displays a compact chōji-ba in with distinct , a manner quite removed from the later -period works and suggestive of the lineage's connection to traditions.
Beyond , , and , the Yoshinori line was also accomplished in the making of spears, and a large-bodied ōmi- from the Bunmei era demonstrates this versatility. The on several designated pieces -- including formal , , and the characters "" -- are consistently praised by examiners for their skilful execution. These works collectively illustrate a lineage of enduring productivity and technical competence across multiple blade forms in late medieval Yamashiro.